target: Remove unused target_core_fabric_ops.get_fabric_sense_len method

There are no callers of se_tfo->get_fabric_sense_len(), so we should
stop having every fabric driver implement it.

Signed-off-by: Roland Dreier <[e-mail]>
Signed-off-by: Nicholas Bellinger <[e-mail]>

Documentation/target/tcm_mod_builder.py

···
 	buf += "	.queue_data_in			= " + fabric_mod_name + "_queue_data_in,\n"
 	buf += "	.queue_status			= " + fabric_mod_name + "_queue_status,\n"
 	buf += "	.queue_tm_rsp			= " + fabric_mod_name + "_queue_tm_rsp,\n"
-	buf += "	.get_fabric_sense_len		= " + fabric_mod_name + "_get_fabric_sense_len,\n"
 	buf += "	.set_fabric_sense_len		= " + fabric_mod_name + "_set_fabric_sense_len,\n"
 	buf += "	.is_state_remove		= " + fabric_mod_name + "_is_state_remove,\n"
 	buf += "	/*\n"
···
 			buf += "	return 0;\n"
 			buf += "}\n\n"
 			bufi += "int " + fabric_mod_name + "_queue_tm_rsp(struct se_cmd *);\n"
-
-		if re.search('get_fabric_sense_len\)\(', fo):
-			buf += "u16 " + fabric_mod_name + "_get_fabric_sense_len(void)\n"
-			buf += "{\n"
-			buf += "	return 0;\n"
-			buf += "}\n\n"
-			bufi += "u16 " + fabric_mod_name + "_get_fabric_sense_len(void);\n"
 
 		if re.search('set_fabric_sense_len\)\(', fo):
 			buf += "u16 " + fabric_mod_name + "_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_length)\n"

drivers/infiniband/ulp/srpt/ib_srpt.c

···
 	return 0;
 }
 
-static u16 srpt_get_fabric_sense_len(void)
-{
-	return 0;
-}
-
 /**
  * srpt_parse_i_port_id() - Parse an initiator port ID.
  * @name: ASCII representation of a 128-bit initiator port ID.
···
 	.queue_data_in			= srpt_queue_response,
 	.queue_status			= srpt_queue_status,
 	.queue_tm_rsp			= srpt_queue_response,
-	.get_fabric_sense_len		= srpt_get_fabric_sense_len,
 	.set_fabric_sense_len		= srpt_set_fabric_sense_len,
 	/*
 	 * Setup function pointers for generic logic in

drivers/scsi/qla2xxx/tcm_qla2xxx.c

···
 	return 0;
 }
 
-static u16 tcm_qla2xxx_get_fabric_sense_len(void)
-{
-	return 0;
-}
-
 static u16 tcm_qla2xxx_set_fabric_sense_len(struct se_cmd *se_cmd,
 					u32 sense_length)
 {
···
 	.queue_data_in			= tcm_qla2xxx_queue_data_in,
 	.queue_status			= tcm_qla2xxx_queue_status,
 	.queue_tm_rsp			= tcm_qla2xxx_queue_tm_rsp,
-	.get_fabric_sense_len		= tcm_qla2xxx_get_fabric_sense_len,
 	.set_fabric_sense_len		= tcm_qla2xxx_set_fabric_sense_len,
 	/*
 	 * Setup function pointers for generic logic in
···
 	.queue_data_in			= tcm_qla2xxx_queue_data_in,
 	.queue_status			= tcm_qla2xxx_queue_status,
 	.queue_tm_rsp			= tcm_qla2xxx_queue_tm_rsp,
-	.get_fabric_sense_len		= tcm_qla2xxx_get_fabric_sense_len,
 	.set_fabric_sense_len		= tcm_qla2xxx_set_fabric_sense_len,
 	/*
 	 * Setup function pointers for generic logic in

drivers/target/iscsi/iscsi_target_configfs.c

···
 	return 2;
 }
 
-static u16 lio_get_fabric_sense_len(void)
-{
-	/*
-	 * Return two byte offset into allocated sense_buffer.
-	 */
-	return 2;
-}
-
 static int lio_queue_tm_rsp(struct se_cmd *se_cmd)
 {
 	struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
···
 	fabric->tf_ops.queue_status = &lio_queue_status;
 	fabric->tf_ops.queue_tm_rsp = &lio_queue_tm_rsp;
 	fabric->tf_ops.set_fabric_sense_len = &lio_set_fabric_sense_len;
-	fabric->tf_ops.get_fabric_sense_len = &lio_get_fabric_sense_len;
 	/*
 	 * Setup function pointers for generic logic in target_core_fabric_configfs.c
 	 */

drivers/target/loopback/tcm_loop.c

···
 	return 0;
 }
 
-static u16 tcm_loop_get_fabric_sense_len(void)
-{
-	return 0;
-}
-
 static char *tcm_loop_dump_proto_id(struct tcm_loop_hba *tl_hba)
 {
 	switch (tl_hba->tl_proto_id) {
···
 	fabric->tf_ops.queue_status = &tcm_loop_queue_status;
 	fabric->tf_ops.queue_tm_rsp = &tcm_loop_queue_tm_rsp;
 	fabric->tf_ops.set_fabric_sense_len = &tcm_loop_set_fabric_sense_len;
-	fabric->tf_ops.get_fabric_sense_len = &tcm_loop_get_fabric_sense_len;
 
 	/*
 	 * Setup function pointers for generic logic in target_core_fabric_configfs.c

drivers/target/sbp/sbp_target.c

···
 	return 0;
 }
 
-static u16 sbp_get_fabric_sense_len(void)
-{
-	return 0;
-}
-
 static int sbp_check_stop_free(struct se_cmd *se_cmd)
 {
 	struct sbp_target_request *req = container_of(se_cmd,
···
 	.queue_data_in			= sbp_queue_data_in,
 	.queue_status			= sbp_queue_status,
 	.queue_tm_rsp			= sbp_queue_tm_rsp,
-	.get_fabric_sense_len		= sbp_get_fabric_sense_len,
 	.set_fabric_sense_len		= sbp_set_fabric_sense_len,
 	.check_stop_free		= sbp_check_stop_free,
 

drivers/target/target_core_configfs.c

···
 		pr_err("Missing tfo->set_fabric_sense_len()\n");
 		return -EINVAL;
 	}
-	if (!tfo->get_fabric_sense_len) {
-		pr_err("Missing tfo->get_fabric_sense_len()\n");
-		return -EINVAL;
-	}
 	/*
 	 * We at least require tfo->fabric_make_wwn(), tfo->fabric_drop_wwn()
 	 * tfo->fabric_make_tpg() and tfo->fabric_drop_tpg() in

drivers/target/tcm_fc/tfc_conf.c

···
 {
 }
 
-static u16 ft_get_fabric_sense_len(void)
-{
-	return 0;
-}
-
 static u16 ft_set_fabric_sense_len(struct se_cmd *se_cmd, u32 sense_len)
 {
 	return 0;
···
 	.queue_data_in =		ft_queue_data_in,
 	.queue_status =			ft_queue_status,
 	.queue_tm_rsp =			ft_queue_tm_resp,
-	.get_fabric_sense_len =		ft_get_fabric_sense_len,
 	.set_fabric_sense_len =		ft_set_fabric_sense_len,
 	/*
 	 * Setup function pointers for generic logic in

drivers/usb/gadget/tcm_usb_gadget.c

···
 	return 0;
 }
 
-static u16 usbg_get_fabric_sense_len(void)
-{
-	return 0;
-}
-
 static const char *usbg_check_wwn(const char *name)
 {
 	const char *n;
···
 	.queue_data_in			= usbg_send_read_response,
 	.queue_status			= usbg_send_status_response,
 	.queue_tm_rsp			= usbg_queue_tm_rsp,
-	.get_fabric_sense_len		= usbg_get_fabric_sense_len,
 	.set_fabric_sense_len		= usbg_set_fabric_sense_len,
 	.check_stop_free		= usbg_check_stop_free,
 

drivers/vhost/tcm_vhost.c

···
 	return 0;
 }
 
-static u16 tcm_vhost_get_fabric_sense_len(void)
-{
-	return 0;
-}
-
 static void vhost_scsi_free_cmd(struct tcm_vhost_cmd *tv_cmd)
 {
 	struct se_cmd *se_cmd = &tv_cmd->tvc_se_cmd;
···
 	.queue_data_in			= tcm_vhost_queue_data_in,
 	.queue_status			= tcm_vhost_queue_status,
 	.queue_tm_rsp			= tcm_vhost_queue_tm_rsp,
-	.get_fabric_sense_len		= tcm_vhost_get_fabric_sense_len,
 	.set_fabric_sense_len		= tcm_vhost_set_fabric_sense_len,
 	/*
 	 * Setup callers for generic logic in target_core_fabric_configfs.c

include/target/target_core_fabric.h

···
 	int (*queue_status)(struct se_cmd *);
 	int (*queue_tm_rsp)(struct se_cmd *);
 	u16 (*set_fabric_sense_len)(struct se_cmd *, u32);
-	u16 (*get_fabric_sense_len)(void);
 	/*
 	 * fabric module calls for target_core_fabric_configfs.c
 	 */